Governor for controlling the speed of engines and machinery.



c. L. & F. w. HEISLER. TBOLLING THE SPEED OF ENGIN BS AND MACHINERY.

common FOR con APPLIOATION ri'mzn 110g. 21, 1011.

2 BHIIIIIB SHBY-T 1.

INVFN I OH} Patented June 9, 1914.

G. L. & F. W, HEISLER. eoynnuon FOB. CONTROLLING THE $2251) or nuemns AND MACHINERY.

APPLIOATIOK FILED NOV. 21, 1911.

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CHARLES L. HEISLER, OF SCHENECTADY, AND FREDERICK WILLIAM HEISLELR, 01* UTIGA, NEW YORK.

GOVERNOR FOR CONTROLLING THE SPEED OF ENGINES AND MACHINERY.

Specification of Letters Patent.

Patented June 9, 1914:.

Application filed November 21, 1911. Serial No. 661,452.

To all 7071 om it away concern Be it known that we, CHARLES LOUIS Hnrsnnn, a citizen of the United States, and a resident of Schenectady. in the county of Scl'iencetady and State of New York, and Fnnnnnicn VILLTAM lll-usi'nn, a citizen of the United States, resident of Utica. in the county of Oneida and State of New York, have invented certain new and useful Improvements in Governors for Controlling the Speed of Engines and Machinery, of which the following is a specification. A

Our invention relates more particularly to governors ar *anged in an inclosing case andin the manner illustrated by the accompany ing drawings, in which- Figure 1 shows an exterior end view; Fig. 2 an exterior side View: Fig. 3 is a cross sectional side View, and Fig. 4 an end view in which the conical cover with its mechanism is removed to show the revolving semi-circular cheese weights shown in Fig. 5 and indicated by the numerals 1 and 1.

These semi-circular weights are of precisely the same construction and are each provided with a spring pocket 1 and 1 arranged to inelose a centrally and symmetrically located spring 2 as indicated by'the dotted lines in Figs. 3 and 4. The weights are pivotally mounted upon the T head 12 of the driving spindle 12 by means of the T- head pins 27 and 27 forming pivotal supports that exterul'through the weights as shown. As usual the spring 2 opposes the centrifugal and inertia action of the fly Weights, but/will not always hold them in symmetrical relation to the rotating axis located in the axis of the driving Spindle. 12, therefore. it. is necessary to provide two parallel links 25 and 25 that are placed equally distant, from and parallel with the T-head 12 I upon pins 26. 26. 26" and 26 placed in parallel lines. passing these pins and equally distant from the spindle axis as shown in Fig. 5, which also shows that the several members of this construction are always in perfect rotating balance and because. the spring resistance is in a line that passes through the rotating axis and through the center of gravity of the two semi-circular inertia fly weights, therefore, a minimum frictional pressure is put upon the pins 27 are placed at an angle with the and pivotally mounted and 27 regardless of the mass and speed of the governor weigl'its. The :nljustnnent of the spring is made in the usual manner by means of adjusting nuts reached through a suitable opening 35 in the inclosing case 1 I. It will be noticed that the parallel lines containing the pivotal points 26, Q6, 26" and. 26* line of part i-ng 37 between the two weights 1 and 1. Furthermore, these parting lines remain parallel with each other as the weights separate, as shown in Fig. 5. tion and arrangement. of these wt-zights and their accessories evidently give the greatest possible mass in a minimum space combintul with the greatest simplicity.

The transmission of the movement of the weights to the'rotating piston rod 5 is ac eomplished by means of the links 8 and 3" pivotally connected with the plus an and 26. and the crosshead 4 that slidingly engages with the T-head formed on the rotating pis ton rod 5. From Fig. 5 it is evidcnt that: the pins 26 and 26" approach each other when the weights separate. tlwreby causing the piston rod to move to the right in Fig. 3 against the resistance of the liquid contained in the dash-pot cylinder 6 the flow of the liquid being adjusted by the set-screw plug 98 arranged in the passmge 99 between the opposite sides oi the rotating and rccipro eating piston 6. At the right end'ot the piston rod 5 a hall thrustbearing 7 is arranged to transmit the thrust from the gov crnor weights to the elbow lever B and against. the resistance of the adjusting spring 9. whose tension is changed by means of the screw 9-1. lvidcut lv the rotation of the dash pot piston and rod eliminates from those members and the stuiling boxes all frictional resistance to reciprocation regardless of any carelessness which may have caused them to he aluuu-iuallv tight. This arrangement produces an extremely stable and sensitive governor.

As shown. the mechanism is incloscd in oil tight case. with the dash therein, and the oil leakage from the dash pot gives ample luln-ication' tor the incloscd moving parts including the spindle 19. thereby forming a complete self-oiling gov nor with a frictionless dash pot.

hen driven y a chain or h lh it. is doan pot formed sirable to use the weighted arm and pulley 14 and 15 pivotally mounted upon the hear:

ing 31 formed on an extension of the case fleet-ions. In case of a broken belt, theex- .the engine,

cessive movement of the arm 15 would evidently cause the controlling rod 32 to be moved to the left and close the engine valve to which the controlling rod may be attached.

When the governor is to have sole con- ;trol of the engine, then the lever 22, Fig, 1,

remains stationary in any preadjusted position. However, when the movementor positionof an accumulator-as in a hydraulic pumping engine system-is to stop or speed then the lever 22 is connected to the accumulator, and the governor elbow lever 8 is attached by means of the link 23 to the middle of the floating lever 20, as shown. Evidently the relatii e positionsof these levers and fulcrums may be changed to suit local conditions so long as'they fulfil their functions in the manner described,

The spring latch 19, Fig. 1, is for the purpose of causing the controlling rod 32 to move with the arm 20 excepting when the belt breaks and causes the rod to be moved to the extreme left for closing the engine valves.

As shown, the case 11 is covered by a" conical hood or lid 10 that contains the dash pot 6 and a bracket having a pivotal bear-' ing 30 for supporting the elbow lever 8. This lever lies normally in a horizontal plane, which also contains the driving spindie 12 with its pulley 14. The lower pivotal bracket 36 supports the levers 21 and 22 and is secured to the pedestal formed on the case 11. p

Claims: 1. In a governor, t

- means for producing centrifugal force, a

dash'pot comprising a stationary member,"

1 a combined rotative and reciprocating memher engagin therewith, one of said members being 0 cylindrical form and inclosing the other and slidingly engages therewith,

for the or ose of minimizin friction.

2. In a governor, the combination of means for producing centrifugal force,

means for producing resistance opposing said force, means adapted toresist sudden and undesirable acting of said governor and which comprises a retarding fluid, a piston having a contact surface, means for coupling it to the governor, a cylinder having a contact surface adapted to engage the piston, and meansadapted to cause the surfaces in contact between said piston, and

e combination of the cylinder, to have a motion paralleliwith the axis. thereof, and another about said axis, for the purposeofminimizing friction. 3. In a governor, the combinationv of means fOrproducing centrifugal force, a

spring resistance opposing said force, a dash-pot to resist suddenand undesirable action of said governor, said dashrpot comprising an internal piston having a retarding fluid on each side thereof, a piston rod secured thereto and actuated reciprocatively I and rotatively by'saidgovernor, and adapted to transmit a combinedlreciprocative and v rotative motion to said. piston for the purpose of minimizing friction.

4. In a governor, the combination of means for producing centrifugal force, a spring resistance opposing said force, a system of levers for coupli 'said governor to an engine or other machinery, a dash-pot to governor, said dash-pot comprising an internal piston having 'aretarding fluid on resist sudden and undesirablegaction of said i each side thereof, a piston rod secured there- I tr and actuated reciprocati'vely and rotatively by said governor, in combination with 5. In a governor consisting of a rotative a thrust ball bearing adapted to transmit the I shaft having a head with piv'otal'pins, semicircular weights mounted upon said pins and placed symmetrical with respectto each other and the shaft, and with their straight sides adjacent to each other, being held-"in this position by a resisting coil spring placed Twithin-pockets formed in the semi-circular wei hts and directly across the axis of said she t, and means for transmitting motion from these weights to a controlling rod.

6. In a governonrcomprising a rotative shaft Th'aving a head with pivotal pins formed thereon, inertia fly weights pivotally mounted upon {said pins and having their center of gravity disposed at some'distance therefrom, and symmetrical with respect to s each other and the shaft, a resisting spring coupled to the inertia fly weights and disposed directly across the axis of said shaft,

a controlling rod, means for transmitting motion thereto from theweights; and-links,- disposed parallel one to'the other and coupledto said weights which "are "adapted to swing in a plane perpendicular to the shaft.

,7. In a governor, comprising arotative shaft having a head with pivotal pins, formed thereon, inertia fly: weights pivotally mounted upon said pins and having their centerof gravity disposed at some distance therefrom, and symmetrical with respect to each other andthe shaft; a resisting spring line passing through the pins on said head.

8. In a governor, comprising a rotative shaft having a head with ivotal' pins formed thereon, inertia fly weig ts pivotally mounted upon said pins and having their center of gravity disposed at some distance therefrom, and symmetrical with respect to each other and the shaft, a resisting spring coupled to the inertia fly weights, a controlling rod, means for transmitting motion thereto from the Weights which are adapted to swing in a plane perpendicular to the shaft, a plurality of pivotal bearings, formed on each, weight anddisposed in the intersections of lines parallel one to the other and with lines parallel to a line passing through pivotal pins formed on the head.

9. In a governor, comprising a rotative shaft having a head with pivotal pins formed thereon, inertia fly weights pivotally mounted upon said pins and having their center of gravity disposed at some distance therefrom, and symmetrical with respect to each other and the shaft, and with their sides adjacent to each other, being held in this position by a resisting coil spring disposed directly across the axis of the shaft, a controlling rod, means for transmitting motion thereto from the weights, parallel links coupling said weights, by means of pivotal connections disposed in lines parallel to each other and to one which passes through the pivotal pins, said links being made parallel with. the head and located equally distant therefrom.

In a governor, the combination of means forproducing centrifu al force, a spring resistance opposing said orce, a dash pot to resist sudden and undesirable action of said governor, said dash-pot comprises an internal piston having a retarding fluid on each side thereof, a piston rod securedthereto and actuated reciprocatively and rotatively by said governor, and adapted to transmit a combined reciprocative and retative motion to said piston, a stuffing box disposed at each end of the dash-pot and adapted to engage with the piston rod which extends through the dash-pot and projects from each end thereof.

11. In a governor, the combination of means for producing centrifugal force, a spring resistance opposing said force, a dashpot to resist sudden and undesirable action of said governor, said dash-pot comprises an internal piston having a retarding fluid on each side thereof, a piston rod secured thereto and actuated reciprocatively and rotatively by said governor, and adapted to transmit a combined reciprocative and retative motion to SZIldPlStOIl, a stuffing box disposed at each end of the dash-pot and adapted to engage with the piston rod which extends through the dash-pot and projects from each end thereof, links coupling one end ofthe rod to said weights, and means for coupling the opposite end of the rod to an engine or other mechanism,

CHARLES L; HEISLER- FREDERICK WILLIAM HEISLER- Witnesses:

J. W. GRAETZ, JOHN H. Komuc, 

